Pipe-mold.



PATENTED AUG. e, 1907.

E. L. ADAMS. PIPE MOLD APPLIOATION FILED 17130.6, 1906.

UNITED STATES PATENT OFFICE.

PIEE-MOLD..

To all whom it may concern:

Be it known that I, EDWARD'L. ADAMS, a citizen of the United-States, residing at McLoud, in the county of Pottawatomie and Territory of Oklahoma, have invented certain new and useful Improvements in Pipe- Molds, of which the following is a specification.

This invention relates to new and useful improvements in pipe molds, and it has particular reference to a mold embodying separable sections.

The invention specifically comprises a inold forforming pipes or tiles in which detachably connected semicircular sections are provided, and a pallet which may be clamped to said sectiohs during one step of the operation of forming a pipe or tile.

The invention aims as a primary object to provide novel means for stripping the moldfrom the tile and aims by such means to eliminate a marked disadvantage of the art as ordinarily practiced, such disadvantage consisting in allowing the pipe or tile to become set before the pipe or tile can be removed from the mold, or before the mold can be stripped from said pipe or tile, as the case may be.

The invention aims as a further object to provide a mold of the above type which shall loe simple in construction, inexpensive to manufacture and practical and eflicient in use.

The detailed construction will appear in the course of the following description in which reference is had to the accompanying drawings forming a part of this specification, like characters of reference designating like parts through the several views, wherein,

Figure 1 is a side elevation of a mold constructed in accordance with my invention, the parts thereof being assembled for use. Fig. 2 is a central longitudinal section thereof, showing the disengaged relation of locking elements to be hereinafter specific-all}. referred to. Fig. 3 is a horizontal section on the line 3-3 of Fig. 1. Fig.

4 is a fragmentary plan view of an advantageous means for clamping the mold sections to one another in their assembled relation, and Figs. 5 and 6 are detailed perspective views of elements to be hereinafter specifically referred to. I

In the practical embodiment ofmy invention I em.- ploy a mold, the body portion of which is constituted of co-extensive sections 1 and 2 of semi-circular cross section, which in their assembled relation rest upon and have connection with a pallet 3'. The pallet 3 comprises a raised body portion having a beveled annular edge 4 and an annular flange 5 projecting outwardly from said body portion and upon which the sections 1 and 2 are seated. Said sections 1 and 2 are provided at'correspondingly equi-distant points with straps 6. The straps 6 of the section 1 at their ends have pivotal connection with clamping yokes 7 which swing on vertical axes and adapted as shown in Figs. 1, 3 and 4 to engage horizontally projecting studs 8 provided upon the Specification of Letters Patent. Application filed December 6, 1906. Serial No. 346,675.

Patented A 6, 1

straps 6 of the section 2. For the purpose of effecting positive locking engagement between the yokes 7 the studs 8, a set screw 9 is threaded through the end of h each of the yokes 7 and'is designed to frictionally en gage the adjacent stud 8. i i The mold, in operation,'rests upon a stationary ob j ect or floor A which is provided at diametrically o pp'o site points with enlarged recesses B. The major por-v tion of said recesses is closed by a U-shaped cap plateC between the'legs of which is a recess 0. The flange 5'lof the pallet 3 partially overlies said recesses '13. i The means for clamping the sections 1 and 2 to floor A is designed to engage the capplates-"C and to work in the recesses 13 and c. The said clamping means is also employed to lock or clamp-the pallet 3 to the sec tions 1 and 2 in removing the mold and its product from the stationary object or floor A. Figs. land 2 illus i an advantageou s embodiment of such means. The'sc tions 1 and 2 are provided with straphandles 11 hav extensions to which a lever 12 is pivoted as at 13. A. stirrup 14 has its free ends pivoted as at 15 to the lever 12 at a point some distance above the stationary pivot 13 of said lever. This stirrup 14 is illustrated in detail in Fig. .5 and is formed in its side bars with vertical 1611: gitudinal slots 16. The lower cross bar of the stirrup 14 is provided with a central opening 17 through which is loosely projected a rod 18 having a threaded upper end 19 and having its lower end provided with an integral cross piece 20 extending on each side thereof and an extension 10 for engagement with the flange 5 of the pallet 3 as will be set forth. The upper end 19 of the rod 18 projects through a central opening 21 provided in a plate 22 having integral laterally extending arms 23 Which project through the slots 16 in each of the side bars of the stirrup 14. The plate 22 is retained from displacement from the upper end of the rod 18, by a nut 24 threaded upon the upper ends of each of said bars 18. Between the plate 22 and the lower cross bar of the stirrup 14, ari expansive coil spring 25 is interposed. The spring 25 surrounds the bar 18 and has its tension regulated by the proper rotation of the nut 24, the plate 22 serving as a follower and being held against rotation by. the arms 23 which work in the slots 16 as guides.

In practical use the cross pieces 20 of the bars 18 are first engaged in the recesses B underneath the cap plate 0 and the sections 1 and 2 are then disposed with relation to one another as shown in Figs. 1 and 2. In such disposition said sections are clamped together by the yokes 7 and studs 8 in the manner described. The rods 18 having had their ends 20 engaged in the recesses B,

said pallet.

sections land 2 upon their stationary support. The

core (not shown) is then inserted concentrically into the space defined by the assembled sections 1 and 2 and material of the pipe or tile is introduced in a plastic or 1 '5 semi-plastic state between said core and the inner surlaces oi said sections 1 and 2. After said material has become suliiciently solid the mold and its product are removed to a place where the tile or pipe may be dried. This removalis oil eel-ed by swinging the levers 12.to the 10 position of Fig. 2 and moving the bars 18 with the foot 2O prevented. The beveled surface 4 of the body portion ,oi the pallet 3 serves to give the proper conformation to the lower end of the pipe or tile and the upper end is correspondingly shaped by a suitable form. In disas seinbling the sections 1 and 2 from one another to strip them from the finished product, the levers 12 are again swung to theposition of Fig. 2, which permitssoi the disengagement of the bars 18 from the pallet 3. The yokes 7 are then released and swung out of engagement from the studs 8, at which time the sections 1 and'2 may be detached from one another and from the pallet 3.

lWhile the elements herein shown and described are welladapted to serve the functions set forth, it is obvious that various minor changes may be made in the proportions, shape and arrangement of the several parts withontdeparting from the spirit and scope f the invention as-defined in the appended claims.

Having-fully described my invention Ielaim:

1. A mold otthe type set for h eon'iprising, in combination with a stationary support, apallet resting thereupon, detacl ably connected mold walls resting upon said pallet,

pivotal members carried by each ofsaid mold walls and means for operatively engaging said pivotal members with said stationary support-oiwith said pallet to clamp said v mold walls thereto.

2. A mold of the type set forth, comprising in combination with :1 stationary support detachably engaged walls, a pallet, said walls in their'assenibled relation being adapted to rest on said pallet, and clamping means carried by said walls adapted in one position to engage said support and in another position to engage said pallet.

3. A mold of the type set forth, comprising in combina tion with a stationary support a pallet, detachably engaged walls adapted in their assembled relation torest on said I pallet, pivoted clamping members carried by said walls and adapted for engagement in different positions with said support or said pallet to clamp said mold walls thereto, and means for fixing said clamping-members in their en-. gaged relation with either said support or said pallet.

4. A mold of the type set forth, comprising in eombinzv' tion with a stationary support a pallet, detaehahly engaged walls adapted in their assembled relation to rest on said pallet, pivoted clamping means carried by said walls and comprising yieldahly connected mernhevslsaid clamping,

means being adapted in different positions-t0 engage said support or said pallet to clamp said mold .walls thereto, and means for fixing said clamping members in their engaged relation with either Sflld'Sl'lDpOlt or said pallet;

In testimony whereof I ulhx my signature in presence of two witnesses. i

El )VARD L. A DAMS.

Witnesses L. S. l'lmvAims, W. J. NnwsoM. 

